The Rites of Eastern Christendom (2 Volumes) by Archdale King
Amazon description: In this classic introduction to Eastern Orthodox liturgies, King examines the liturgies of nine Oriental churches. The Syrian, Maronite, Syro-Malankara, Coptic, Ethiopic, Byzantine, Chaldean, Armenian, and Syro-Malabar rites are all considered. Each is described and given a context in the setting of its native church.